Applying geoscience to Australia's most important challenges

National Catchment Boundaries v 1.1.4

Abstract

The National Catchment Database is a linked set of spatial layers and associated attribute tables describing key elements
of the surface water hydrology of the Australian continent at a map scale of about 1:250,000. It is built upon the representation
of surface drainage patterns provided by the GEODATA national 9 second Digital Elevation Model (DEM) Version 3 (ANU Fenner
School of Environment and Society and Geoscience Australia, 2008). The stream network and catchment boundaries contained
within the database form foundation elements of the Bureau of Meteorology's Australian Hydrological Geospatial Fabric (Geofabric),
the spatial framework that underpins the Australian Water Resources Information System (AWRIS) (http://www.bom.gov.au/water/geofabric/index.shtml).
This database adds additional environmental attributes not available through the AHGF. The database contains Levels 1 (drainage
divisions) and 2 (aggregated river basins group) National Catchment Boundaries (NCB) in raster format including NCB Pfafstetter
coding. The Vector format is available from the Bureau's Geobraic website.